PLEASE HELP! DUE IN 5 MINUTES! ( 10 points )
An atom of gold with 79 protons, 79 Electrons and 118 neutrons would have a mass number of....
A) 39
B) 158
C) 197
D) 276

Answer:

The sun'll likely absorb the radiation if it is close enough (Which it will never be)

Explanation:

In mathematics, an ellipse is a plane curve surrounding two focal points, such that for all points on the curve, the sum of the two distances to the focal points is a constant. As such, it generalizes a circle, which is the special type of ellipse in which the two focal points are the same.

Maybe they might use that math thing for Science.

Answer:

I believe it is D/ Scientific theories cannot be proven but they can be disproven

Explanation:

I choose it on a test I'm waiting for my result

To prepare 250 mL of a D10/NS solution using D10W and a vial of NaCl 4 mEq/mL, you would need 9.6 mL of NaCl. Normal saline (NS) contains 154 mEq/L of sodium chloride (NaCl). To prepare 250 mL of NS, you would need 250 mL * (154 mEq/L) = 38500 mEq of NaCl. Since the vial of NaCl contains 4 mEq/mL, you would need 38500 mEq / (4 mEq/mL) = 9625 mL = 9.6 mL of NaCl. So the correct answer is b. 9.6ml.

Answer:The answer is C: How long does it take distilled water to evaporate from a 5” diameter container?

Explanation:

In the air, a salt solution will evaporate more slowly than pure water.

What is Evaporation?

The process by which a liquid transforms into a gas state is called evaporation. A surface phenomena, that is. The amount of evaporation depends on the humidity. If the air is humid, it is virtually saturated, which means that evaporation will occur at a much slower rate.

Since evaporation takes place on the liquid's surface, the salt molecules that are present on the water's surface prevent as much water from evaporating. As a result, salt water evaporates more slowly than pure water.

As a result, the salt solution will evaporate from the air more slowly than pure water.

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Answer:

May be thay can be tropical in south east and wet in middle, hot in west and cold in north.

Explanation:

(Sunny, windy, cloudy, cold, foggy, rainy, snowy, clear, warm(peace), hot(uncomfortable))

BRAINLY ME PLEASE IF HELPFUL!!!

Explanation:

The atomic theory is a scientific model that explains the behavior of matter in terms of the behavior of atoms and molecules. According to this theory, all matter is made up of tiny, indivisible particles called atoms. Physical and chemical changes in matter are explained by changes in the arrangement and interactions of these atoms.

Physical changes involve a change in the physical state or appearance of matter, without a change in its chemical composition. Examples include changes in temperature, pressure, or state (e.g. solid, liquid, gas). These changes can be explained by the atomic theory in terms of the movement and arrangement of atoms and molecules. For example, the melting of ice involves the absorption of energy by water molecules, which causes them to move faster and break their bonds with the ice molecules.

Chemical changes involve a change in the chemical composition of matter, resulting in the formation of new substances with different properties. Examples include reactions between acids and bases, combustion reactions, and oxidation-reduction reactions. These changes can also be explained by the atomic theory in terms of the rearrangement of atoms and molecules. For example, the reaction between hydrochloric acid and sodium hydroxide involves the exchange of hydrogen and sodium ions, resulting in the formation of water and sodium chloride.

In summary, the atomic theory provides a framework for understanding physical and chemical changes in matter by explaining them in terms of the behavior of atoms and molecules. Verification of physical and chemical changes can be achieved through experiments and observations that demonstrate changes in the properties and behavior of matter, consistent with the predictions of the atomic theory.

Answer:

The atomic theory explains how physical and chemical changes occur at the atomic level. The theory explains that all matter is made up of atoms and molecules, which are constantly in motion.

Physical changes involve a change in the physical properties of matter, but no change in the fundamental nature of the substance. For example, when water freezes, it changes from a liquid to a solid, but the molecules remain the same. Chemical changes involve a change in the fundamental nature of the substance, where new molecules are formed. The atomic theory helps explain these changes by showing how atoms and molecules interact during chemical reactions. By analyzing the atomic and molecular structure of matter before and after a change, scientists can verify whether a physical or chemical change has occurred.

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Answer: hydrogen-carbonate.

Explanation:Because when carbon dioxide is passed in excess it leads to a formation of hydrogen-carbonate.

I hope everyone finds this helpful

Answer:

sorry man the kind of question where you have to write them, you gotta do that youself becuase the teachers can find that you got the asnwer here, use brainly for questions with choices not the writing ones

Explanation:

Answer:

When things burn, it looks like they are destroyed, but during any chemical reaction no particles are created or destroyed. The atoms in fuels are simply rearranged from the reactants to the products during combustion.

Explanation:

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:)))))))))))))

Answer:

Answer:

Most things, if not all, are dependent on the Sun. The Sun causes things to grow, which causes animals to thrive, which causes other animals to thrive, which causes a balanced ecosystem, meaning a balanced food chain.

Explanation:

Answer:

the answer for both is opinion

Answer: Must be a trick question.

Explanation: All of these are a function of the integumentary system.

Answer:

A) Moving water turns a paddle wheel that helps generate electricity.

Explanation:

Answer:

+6.

Explanation:

So, a chromium atom here has an oxidation number of +6.

Answer:An exothermic reaction may be defined as a type of reaction in which energy is significantly liberated in the form of heat or light. In such types of reactions, energy is generally transferred into the surroundings rather than utilized from the surroundings.

The option "energy from an outside source is continuously being added" represents an endothermic reaction in which heat or light energy is externally been provided. The option "more heat is given off than is put into the reaction" is not absolutely true because exothermic reactions liberate energy but it does not matter if it is higher or lower than that of being put into the reaction.

Therefore, the reactants have more heat energy than the products is a statement that is true about exothermic reactions. Thus, the correct option for this question is C.

Explanation:

you welcome

Energy from outside sources is continuously being added, since its an exothermic reaction it always focusses on releasing large amount of energy upon activation and combustion.

It cuts off on giving energy back to its surrounding unlike endothermic reaction where the generated energy is given back to the environment to restore its energy levels.

Therefore, it makes it clear that exothermic reaction is a type of reaction that uses combustion to gather the energy lying around in the surrounding to generate large amount of energy and heat and keeps on producing heat until and unless there is energy in surrounding.



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Answer: Its the First One

Cooperation is a positive interaction between the two organisms, and predation and competition result in a negative interaction for at least one organism.

Explanation:

predation is preying on the other so its negative for at least one of them.

competition is fighting so its negative for at least one of them.

Cooperation makes them help each other so its positive.

Answer: predation is preying on the other so its negative for at least one of them.

competition is fighting so its negative for at least one of them.

Cooperation makes them help each other so its positive.

Carbon and Hydrogen.

Answer:

Mostly decaying organisms are needed to present in marine mud to form fossil fuels.

Explanation: When organisms and plants died and sank to the bottom of swamps and oceans, brown soil-like materials called peat are formed. Over millions of years, the peat became covered with sand, clay and other minerals and the peat is converted into layers of sedimentary rocks. After a long time, different type of fossil fuels are formed.

Answer:

Element Symbol # of Atoms

Iron Fe 2

Oxygen O 12

Sulfur S 3

Answer:

i think answer is spiritual connection

c. The atom becomes positively charged

if the electrons are removed it means theres no longer a negative charge to balance the positive charge of the protons in the atom

Answer:

Some small volcanoes only erupt once in their lives,

while other volcanoes erupt multiple times. Kilaeua volcano in Hawaii, which has been erupting continuously since 1983, is the world's most active volcano. While some volcanoes erupt at regular intervals, there are always exceptions to the rule

Answer:

small volcano's only 1 time while big volcano's mutiple times

Explanation: